A metallic particle is subjected to the influence of a magnetic field as it travels downward through a fluid that extends from plate A to plate B, as shown in Fig. 3. If the particle is released from rest at the midpoint C, s=100mm, and the acceleration is a = (4.5s)m/s², where s is in meters, determine the velocity of the particle when it reaches plate B, s-200mm, and the time it takes to travel from C to B.

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